Fix Hadolint errors

PrimeWhitespace/solution_1/Dockerfile

@@ -1,17 +1,23 @@
 FROM ubuntu:24.04
+
+WORKDIR /tmp
 RUN apt-get update && \
-    apt-get install -y git make python3 ghc && \
-    mkdir -p /opt && \
-    cd /opt && \
+    apt-get install -y ghc git make python3 && \
     git clone --depth 1 https://github.com/TryItOnline/WSpace && \
-    cd WSpace && \
+    apt-get remove -y git && \
+    apt-get autoremove -y && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /tmp/WSpace
+RUN apt-get update && \
+    apt-get install -y make && \
     make && \
     cp wspace /usr/bin/whitespace && \
-    cd / && \
-    apt-get remove -y git make && \
+    apt-get remove -y make && \
     apt-get autoremove -y && \
     apt-get clean && \
-    rm -rf /var/lib/apt/lists/* /opt/WSpace
+    rm -rf /var/lib/apt/lists/* /tmp/WSpace
 
 WORKDIR /opt/app
 COPY *.ws *.sh *.py ./